Sulphur composition and method of making the same



1 because the finely divi Patented Dec. 2, 1930 HENRY BLUMENBERG, 33;, OI IOAPA, NEVADA summon courosi'rron Air-i) METHOD or MAKING ran sun:

R Drawing.

My invention consists of a composition of matter which may be used either alone for dusting or spra ingplants to destroy insect parasites, moul or fungi, or may be mixed 8 with other well known suitable agents for' any dusting or spraying compositions. In particular, it is an object of this inven tion to provide a method whereby sulphur, which is one of the common ingredients in 10 spraying-and dusting compositions, may be easily, economically and safely prepared in a finely divided state; 7 Methods hitherto in use for producing sulphur in a owder form have been by sublimation of t e sulphur or'by grinding the same. The sublimation method isineflicient as only about a maximum yield of sixty (60%) r cent of flour sulphur is obtained, while t e grinding o eration is dangerous. dbd dust produces with the air a highly ex losive mixture, the mixture liable to be igmted bystatic electricity. My invention consists in a new method of 'makinga finel divided sulphur associatedwith boric aci'.-

f Crude sulphur, preferably conuninuted, is j mixed with 10 per cent of boric .acid d subjected to distillation in a suitable re rt, such as a cast iron retort. The tem eraturemay' (vary from say 130 to 300 C. 0th the sul- Application filed. February 14, 1927. Serial no. 168,234.

phur with boric acid and sublimating the same whereby a powdery mixture of sulphur and boric acid is formed.

2. A method of producing-sulphur in a finely divided state comprising mixing 90 .per cent of sulphur with 10 per cent boric acid and sublimating the same whereby a powdery mixture of-sulphur and boric acid is formed.

3. A method of producing sulphur in a finely divided state comprising mixing 90 per cent of sulphur with 10 per cent boric acid and heating the same to a temperature of 130 to 300 0. whereby a powdery mixture of sulphur and boric acid is formed.

4.. composition of matter comprising a powdery mixture of sulphur and boric acid produced by the sublimation of the mixture of sulphur and boric acid.

5. A composition of matter com rising a powdery mixture of 90 er cent 0 sulphur and 10 per cent boric aci produced by sublimation of the mixture of sulphur and boric ac1 In testimony whereof I'have signed my name to this specification.

HENRY BLUMENBERG, JR.

phur and boric acid will be sublimated in anintermolecular mixture, ve1hflufly, formin .ayellowis'h white powder. e proportiono boric acid may be somewhat less than 10 per cent, and may also be increased to approximately per cent of the total mixture. The

resulting product may be used either alone or in conjunction with other suitable reagents for spraying and dusting of trees and plants. I

1 The boric acid is a valuable addition to the sulphur, being itself an antiseptic, and is a valuable ingredient to the dusting or spraying composition in which'it is used.-

Various changes may be made in the steps of the process by those skilled in the art without departing from the-spirit of my in: vention as claimed.

I claim: 1 I

1. A method of producing sulphur in a finely divided state comprising mixing sulsoc 

